Overview
East Chicago-Marina is an operational air monitoring station in East Chicago, Indiana, managed by the Indiana Department of Environmental Management. It provides ambient air quality data for the Lake County region.
East Chicago-Marina is an air monitoring station located at 3301 Aldis St. in East Chicago, Indiana, within the Lake County area. Operated by the Indiana Department of Environmental Management's Office of Air Quality, this station is part of the broader US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station's last reported sample date is September 28, 2025, indicating ongoing data collection. The station operates under the regulatory framework of the Clean Air Act and contributes to the state's air quality monitoring network. Typical air monitoring stations in this region measure pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The siting of the station near the Lake Michigan shoreline provides representative data for the East Chicago urban area, which has a history of industrial activity including steel manufacturing and refining. Environmental monitoring at this station supports public health protection by tracking air quality trends and informing regulatory decisions. The data collected helps assess compliance with NAAQS and supports community awareness of local air quality. As part of the Indiana network, East Chicago-Marina plays a role in regional air quality management and contributes to the national database used for research and policy development.
Environmental context
East Chicago is located in the industrial corridor of northwest Indiana, near Lake Michigan. The area has a mix of heavy industry, including steel mills and petroleum refining, which can contribute to elevated levels of criteria pollutants such as particulate matter and sulfur dioxide. The air monitoring station's location near the marina provides a representative sample of urban and industrial emissions. Monitoring in this region is critical for assessing compliance with NAAQS and understanding the impact of local sources on air quality. The station's data supports the state's air quality management efforts and informs public health advisories.
Frequently asked questions
The East Chicago-Marina air monitoring station is located at 3301 Aldis St. in East Chicago, Indiana, USA, near the Lake Michigan shoreline.
As part of the US EPA AQS network, the station typically monitors criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, though specific parameters may vary.
The station is operated by the Indiana Department of Environmental Management's Office of Air Quality.
Air monitoring in the US is governed by the Clean Air Act and implemented through the EPA's Air Quality System (AQS) network, which sets National Ambient Air Quality Standards (NAAQS) for criteria pollutants.
East Chicago has a history of heavy industry, including steel and refining, which can impact local air quality. Monitoring helps ensure compliance with health-based standards and provides data for public health protection and regulatory decisions.
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